CN111550676B - Water pipe water leakage detection device and method - Google Patents
Water pipe water leakage detection device and method Download PDFInfo
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- CN111550676B CN111550676B CN202010566149.1A CN202010566149A CN111550676B CN 111550676 B CN111550676 B CN 111550676B CN 202010566149 A CN202010566149 A CN 202010566149A CN 111550676 B CN111550676 B CN 111550676B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/082—Pipe-line systems for liquids or viscous products for cold fluids, e.g. liquefied gas
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
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- Acoustics & Sound (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a water pipe water leakage detection device and a method thereof, relating to the technical field of control, and the technical scheme is as follows: the method comprises the following steps: the system comprises a pipeline, a water flow sensor, a controller, an electric control valve and a power supply unit, wherein the water flow sensor is arranged in the pipeline and is used for acquiring a water flow value and transmitting the water flow value to the controller; the controller calculates the fluctuation value of the water flow values received in two adjacent times, judges the fluctuation value according to the standard of water leakage and non-water leakage, and after the judgment of water leakage is finished, if the water leakage is not judged, the controller operates normally, continues to receive the next water flow value and judges whether water leakage exists; if the water leakage is judged, the controller sends a closing instruction to the electric control valve; when the electric control valve receives a closing instruction sent by the controller, the electric control valve is closed; the power supply unit is electrically connected with the controller, the electric control valve and the water flow sensor, the utility model can accurately judge whether water leakage occurs, has high accuracy and can not cause the condition of water fault and water break.
Description
Technical Field
The utility model relates to the technical field of control, in particular to a water pipe water leakage detection device and a water pipe water leakage detection method.
Background
In the actual life, the water leakage phenomenon often occurs due to a series of reasons of water pipe aging, breakage, leakage, incomplete closing of a faucet or forgetting to close the faucet, and the like, so that not only is the waste of water resources caused, but also the life of personnel is seriously threatened or the property loss of a house is caused, particularly in a highly dense residential area, one-layer water leakage causes great inconvenience and trouble to a next door unit, and the condition frequently occurs in the actual life.
However, the current water leakage protector has the defects that: at high intensive residential district, and many families supply water for same total valve, when meeting with the water peak period, if wash one's face and rinse one's mouth evening etc. so in this period water consumption can sharply increase, and the condition of different user's water of meeting of front and back can appear very probably, the delivery port continues out water so, just reaches the disposable water supply volume that sets up in advance very easily, the protector that leaks this moment can still close the valve according to normal procedure, can stop supplying water in the residential district so this moment, can cause very big inconvenience to the user.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a water pipe water leakage detection device and a method thereof, which have the advantage of high accuracy.
The technical purpose of the utility model is realized by the following technical scheme: a water pipe leakage detection device includes:
a conduit for the passage of water;
the water flow sensor is arranged in the pipeline and is used for collecting a water flow value and transmitting the water flow value to the controller;
the controller is electrically connected with the water flow sensor and is used for receiving and storing the water flow value;
assuming that the water flow value collected by the water flow sensor for the first time is Q1The water flow value acquired by the water flow sensor for the second time is Q2The water flow value collected by the water flow sensor at the Nth time is QN，
The fluctuation value of the water flow rate value is deltaQ＝QN-QN-1Setting the maximum value of the percentage difference of the two adjacent water flow values as + A and the minimum value as-A;
assuming that the set time length is T, resetting and operating the set time length T after the judgment of whether water leakage exists is finished;
when | Q appears within a set time period TN-QN-1)/QN-1If the absolute value is greater than A, judging that no water leakage exists, setting a time length T to restart timing, and normally operating the controller;
when the set time length T is finished and the set time length T always satisfies | (Q)N-QN-1)/QN-1If the water leakage is judged to be smaller than or equal to A, the controller sends a closing instruction to the electric control valve;
the electronic control valve is electrically connected with the controller, and is closed when receiving a closing instruction sent by the controller;
and the power supply unit is electrically connected with the controller, the electric control valve and the water flow sensor.
Through the technical scheme, the duration T is preset on the controller, the water flow sensor measures the water flow of a pipeline flowing through, then the water flow sensor transmits the measured water flow value to the controller, the controller stores the received water flow value, the controller compares the received water flow value with the previous water flow value every time and calculates the fluctuation value of the water flow values of two times, the maximum value of the difference percentage of the adjacent water flow values is preset on the controller to be + A, the minimum value is-A, and when the fluctuation value calculated by the controller meets | (Q)N-QN-1)/QN-1When the water flow rate is greater than A, the controller judges that no water leakage exists at the moment, and simultaneously, the set time length T restarts timing, the controller continues to receive the next water flow rate value transmitted by the water flow sensor and judges whether water leakage exists, and when the set time length T is finished, the fluctuation value calculated by the controller always meets (Q) within the set time length TN-QN-1)/QN-1And when the | is less than or equal to A, the controller judges that water leakage is occurring at the moment, the controller sends a closing instruction to the electric control valve, the electric control valve is closed at the moment, and the set time length T restarts timing after the set time length T is over.
Preferably, the controller is further provided with a zero clearing unit, the zero clearing unit is used for enabling the water flow value on the water flow sensor to be reset to zero after the controller receives the water flow value, and the zero clearing unit can also enable the set duration T to be reset to operate.
Through the technical scheme, after the controller receives the water flow value, the zero clearing unit on the controller enables the water flow value on the water flow sensor to be zero, the water flow sensor is enabled to collect the next water flow value again and transmit the water flow value to the controller, and the zero clearing unit can reset and operate the set time length T after judging whether water leakage occurs.
Preferably, the power supply unit is a water flow generator, and the water flow generator is installed in the pipeline.
Through above-mentioned technical scheme, the pipeline begins to flow through rivers, and rivers generator begins to generate electricity and supplies power to controller, automatically controlled valve, rivers sensor.
Preferably, the controller is provided with a reset button, and when the reset button is pressed, the controller sends out an opening instruction, and the electric control valve is opened.
Through above-mentioned technical scheme, when the user pressed the reset button, the controller sent and opened the instruction, and the automatically controlled valve reopens, after the emergence leaks, the automatically controlled valve was closed, and the user is after the restoration of the department that leaks is accomplished, and the automatically controlled valve is reopened to the accessible reset button.
Preferably, the rivers sensor the controller sets up in the box, reset button stretches out to outside the box, pipeline one end is provided with the water inlet, and the other end is provided with the delivery port, the pipeline is worn to locate the box just delivery port and water inlet all stretch out to outside the box.
Through above-mentioned technical scheme, through setting up rivers sensor, controller in the box, and the pipeline wears to establish on the box, can enough prevent that rivers sensor, controller from receiving the damage, also be in the same place box and pipeline are fixed simultaneously, improve stability.
Preferably, the water leakage detecting method of the water pipe using the water leakage detecting device includes the steps of,
setting a time length T;
assuming that the water flow value collected by the water flow sensor for the first time is Q1The water flow value acquired by the water flow sensor for the second time is Q2The water flow value collected by the water flow sensor at the Nth time is QN；
The fluctuation value of the water flow rate value is deltaQ＝QN-QN-1Setting the maximum value of the percentage difference of the two adjacent water flow values as + A and the minimum value as-A;
a. the water flow sensor acquires a water flow value and transmits the water flow value to the controller, and the controller receives and stores the water flow value;
b. when the set time length T is finished and is full in the set time length TFoot | (Q)N-QN-1)/QN-1If the water leakage is judged to be smaller than or equal to A, the controller sends a closing instruction to the electric control valve;
when | Q appears within a set time period TN-QN-1)/QN-1If the absolute value is greater than A, judging that the water is not leaked, and setting a time length T to restart timing;
c. the controller continues to receive the water flow value collected by the water flow sensor next time.
According to the technical scheme, within a set time length T, the water flow sensor acquires a water flow value and transmits the water flow value to the controller, and the controller receives the water flow value and stores the received water flow value; the controller starts to calculate the fluctuation values of the previous water flow value and the next water flow value, and judges the fluctuation values, when the fluctuation values calculated by the controller meet the requirement (Q)N-QN-1)/QN-1When the water flow rate is greater than A, the controller judges that no water leakage exists at the moment, the controller continues to receive the next water flow rate value transmitted by the water flow sensor at the moment, calculates the fluctuation values of the previous water flow rate value and the next water flow rate value, judges whether water leakage exists or not according to the fluctuation values, and when the set time length T is finished, the fluctuation value calculated by the controller meets the requirement (Q) all the time when the set time length T is finished (Q is greater than A)N-QN-1)/QN-1And when the | is less than or equal to A, the controller sends a closing instruction to the electric control valve, the electric control valve is closed at the moment, and the set time length T restarts timing after the set time length T is over.
Preferably, after the controller completes step b, the zero clearing unit clears the water flow value on the water flow sensor, and the zero clearing unit resets the set time length T for operation.
Through the technical scheme, after the controller completes the step b, the zero clearing unit on the controller clears the water flow value collected previously on the water flow sensor, the water flow sensor collects the next water flow value again, and the zero clearing unit on the controller clears the set time length T to enable the set time length T to start timing again.
Preferably, after the user presses the reset button, the controller sends an opening instruction, and the electric control valve is opened.
Through the technical scheme, after water leakage occurs, the electric control valve is closed, a user can press the reset button to transmit the opening command to the controller after repairing the water leakage position, the controller sends the opening command, and the electric control valve is opened at the moment.
In summary, compared with the prior art, the beneficial effects of the utility model are as follows:
1. within a set time length T, the water flow sensor collects water flow values flowing through a pipeline and transmits the water flow values to the controller, the controller calculates the water flow values of the received water flow values of the front time and the back time to obtain fluctuation values of the two times, and then judges the calculated fluctuation values to judge whether the water flow values are in water leakage or not.
Drawings
FIG. 1 is a schematic structural diagram of a water leakage detection device of a water pipe according to an embodiment;
FIG. 2 is a flowchart illustrating a method for detecting water leakage in a water pipe according to an embodiment;
fig. 3 is another schematic structural diagram of the water leakage detection device of the embodiment.
Reference numerals: 1. a pipeline; 2. a water flow sensor; 3. a controller; 4. an electrically controlled valve; 5. a power supply unit; 6. a zero clearing unit; 7. a water current generator; 8. a reset button; 9. a box body; 10. a water inlet; 11. and (7) a water outlet.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
A water pipe water leakage detection device and a method thereof are disclosed, as shown in figures 1 to 3, and comprise a box body 9, wherein a pipeline 1 penetrates through the box body 9, a water inlet 10 and a water outlet 11 are respectively arranged at two ends of the pipeline 1 and used for water flow to pass through, and the water outlet 11 and the water inlet 10 both extend out of the box body 9.
The water flow sensor 2 is arranged in the pipeline 1, the installation position of the water flow sensor 2 is close to the water inlet 10, and the water flow sensor 2 is used for collecting a water flow value and transmitting the water flow value to the controller 3 electrically connected with the water flow sensor 2.
The controller 3 is used for receiving the water flow value and storing the water flow value for a user to set time, the set time is assumed to be T, the user can set the set time T on the controller 3 according to actual conditions, the controller 3 is further provided with a zero clearing unit 6, the zero clearing unit 6 is used for conducting zero clearing processing on the set time T after the water flow value is judged whether to leak or not, the set time T is reset to operate, the zero clearing unit 6 is further used for enabling the water flow value on the water flow sensor 2 to be zero after the controller 3 receives the water flow value, the water flow sensor 2 can conduct water flow value collection again from zero, and preferably, the controller 3 is provided with a display screen, so that the user can conduct observation and judgment conveniently.
And the electronic control valve 4, the electronic control valve 4 is electrically connected with the controller 3, and when the electronic control valve 4 receives a closing command sent by the controller 3, the electronic control valve 4 is closed.
The power supply unit 5, power supply unit 5 is connected with controller 3, automatically controlled valve 4, rivers sensor 2 electricity, and preferred power supply unit 5 is rivers generator 7, and rivers generator 7 installs in pipeline 1, and rivers generator 7 accessible pipeline 1 rivers are generated electricity, and power supply unit 5 also can adopt the battery power supply.
Alternatively, the water flow generator 7 may be integrated with the water flow sensor 2, and the water flow generator 7 may have the function of the water flow sensor 2.
Suppose that the water flow value acquired by the water flow sensor 2 for the first time is Q1The water flow value acquired by the water flow sensor 2 for the second time is Q2Water flow value collected by the water flow sensor 2 Nth timeIs QNThe fluctuation value of the water flow rate value is deltaQ＝QN-QN-1Setting the maximum value of the percentage difference of the two adjacent water flow values as + A and the minimum value as-A, and within the set time length T, when the value is | Q | (Q)N-QN-1)/QN-1If the length is greater than A, the water leakage is judged, the set time length T restarts timing, the controller 3 normally operates, and the set time length T is ended and always satisfies (Q) within the set time length TN-QN-1)/QN-1If the water leakage is judged to be less than or equal to A, the controller 3 sends a closing instruction to the electric control valve 4.
Because the water consumption of a user cannot be kept unchanged all the time, and fluctuation always exists in different set time lengths T, when the fluctuation value is 0, the condition of water leakage can be judged to be artificial, the difference percentage of the water flow values in the front and back set time lengths T is preferably plus or minus 15%, when the difference percentage of the water flow values is not limited to 15%, the difference percentage can be adaptively preset, and the judgment standard of the water leakage is correspondingly changed.
Be provided with reset button 8 on controller 3, reset button 8 stretches out outside box 9, convenience of customers presses reset button 8, controller 3 sends the instruction of opening when pressing reset button 8, automatically controlled valve 4 opens, after the emergence is leaked, controller 3 sends the command of closing to automatically controlled valve 4, automatically controlled valve 4 closes, after automatically controlled valve 4 closes, just can not open automatically, just can't carry out the water this moment, accomplish the restoration back to the department of leaking at the user, the accessible presses reset button 8 on the controller 3, make through reset button 8 and open the order and transmit to controller 3, controller 3 sends the instruction of opening automatically controlled valve 4 and opens this moment.
Preferably, the water flow sensor 2, the water flow generator 7 and the electric control valve 4 are arranged in the pipeline 1 from the water inlet 10 to the water outlet 11 in sequence.
The working principle of the water pipe water leakage detection device is as follows:
within a set time length T, the water flow sensor 2 collects water flow values flowing through the pipeline 1 and transmits the water flow values to the controller 3, and the controller 3 fluctuates the received water flow values before and afterCalculating, and judging the fluctuation value, when the set time length T is finished and the set time length T always satisfies | (Q)N-QN-1)/QN-1If the absolute value is less than or equal to A, water leakage is judged, the controller 3 sends a closing instruction to close the electric control valve 4, and if the absolute value (Q) appears within the set time length TN-QN-1)/QN-1If the water leakage is greater than A, the water leakage is judged to be avoided, the zero clearing module 6 on the controller 3 clears the water flow value on the water flow sensor 2, the water flow sensor 2 restarts to collect the water flow value, the zero clearing module 6 on the controller 3 resets the set time length T to zero, the set time length T restarts to time, the controller 3 continues to receive the water flow value collected by the water flow sensor 2, the fluctuation values of the water flow values of the front time and the rear time are continuously calculated, and whether water leakage exists is judged.
The utility model also provides a water pipe water leakage detection method, which is applied to the water pipe water leakage detection device and comprises the following steps:
a. the water flow sensor acquires a water flow value and transmits the water flow value to the controller, and the controller receives and stores the water flow value;
b. when the set time length T is finished and the set time length T always satisfies | (Q)N-QN-1)/QN-1If the water leakage is judged to be smaller than or equal to A, the controller sends a closing instruction to the electric control valve;
when | Q appears within a set time period TN-QN-1)/QN-1If the absolute value is greater than A, judging that the water is not leaked, and setting a time length T to restart timing;
c. the controller continues to receive the water flow value collected by the water flow sensor next time.
After the step b is completed, the zero clearing unit 6 on the controller 3 clears the water flow value on the water flow sensor 2, and after the step b is completed, the zero clearing unit 6 resets the set time length T to zero to restart timing of the set time length T by the controller 3.
After the user presses the reset button 8, the controller 3 will send an opening command to open the electrically controlled valve 4.
Fig. 2 is a flow chart of a water leakage detection method for a water pipe, which comprises the following steps:
and opening a valve of the water using device.
And opening the water pipe water leakage detection device.
And receiving a set time length T set by a user.
Within the set time length T, the water flow sensor 2 collects a water flow value and sends the water flow value to the controller 3.
Receiving and storing water flow data, calculating fluctuation values of the water flow data and the water flow data twice, and when the set time length T is finished, whether the calculated fluctuation values always accord with (Q) in the set time length TN-QN-1)/QN-1And if the value is less than or equal to A, closing the electric control valve 4.
If the fluctuation value meets | (Q)N-QN-1)/QN-1If the water flow rate is greater than A, timing is restarted after the set time length T is set, the water flow rate value is continuously received, and the newly received water flow rate value is judged.
The above description is intended to be illustrative of the present invention and not to limit the scope of the utility model, which is defined by the claims appended hereto.
Claims (7)
1. The utility model provides a water pipe detection device that leaks, characterized by includes:
a conduit (1) for the passage of a flow of water;
the water flow sensor (2), the water flow sensor (2) is installed in the pipeline (1), and the water flow sensor (2) is used for collecting a water flow value and transmitting the water flow value to the controller (3);
a controller (3), the controller (3) being electrically connected to the water flow sensor (2), the controller (3) being configured to receive and store a water flow value;
the water flow value acquired by the water flow sensor (2) for the first time is assumed to be Q1The water flow value acquired by the water flow sensor (2) for the second time is Q2The water flow value acquired by the water flow sensor (2) at the Nth time is QN，
The fluctuation value of the water flow rate value is deltaQ＝QN-QN-1Setting the maximum value of the percentage difference of the two adjacent water flow values as + A and the minimum value as-A;
assuming that the set time length is T, resetting and operating the set time length T after the judgment of whether water leakage exists is finished;
when | Q appears within a set time period TN-QN-1)/QN-1If the absolute value is greater than A, the water leakage is judged, the timing is restarted after the time length T is set, and the controller (3) operates normally;
when the set time length T is finished and the set time length T always satisfies | (Q)N-QN-1)/QN-1If the water leakage is judged to be less than or equal to A, the controller (3) sends a closing instruction to the electric control valve (4);
the electronic control valve (4), the electronic control valve (4) is electrically connected with the controller (3), and when the electronic control valve (4) receives a closing instruction sent by the controller (3), the electronic control valve (4) is closed;
the power supply unit (5), the power supply unit (5) is electrically connected with the controller (3), the electric control valve (4) and the water flow sensor (2); the controller is further provided with a zero clearing unit (6), the zero clearing unit (6) is used for enabling the water flow value on the water flow sensor (2) to be reset to zero after the controller (3) receives the water flow value, and the zero clearing unit (6) can also enable the set time length T to be reset and operated.
2. The water pipe leakage detection device according to claim 1, wherein: the power supply unit (5) is a water flow generator (7), and the water flow generator (7) is installed in the pipeline (1).
3. The water pipe leakage detection device according to claim 1, wherein: the controller (3) is provided with a reset button (8), and when the reset button (8) is pressed, the controller (3) sends an opening instruction, and the electric control valve (4) is opened.
4. The water pipe leakage detection device according to claim 3, wherein: rivers sensor (2) controller (3) set up in box (9), reset button (8) stretch out to outside box (9), pipeline (1) one end is provided with water inlet (10), and the other end is provided with delivery port (11), pipeline (1) is worn to locate box (9) just delivery port (11) and water inlet (10) all stretch out to outside box (9).
5. A water leakage detecting method using the water leakage detecting device as claimed in claim 3, wherein: comprises the following steps of (a) carrying out,
setting a time length T;
the water flow value acquired by the water flow sensor (2) for the first time is assumed to be Q1The water flow value acquired by the water flow sensor (2) for the second time is Q2The water flow value acquired by the water flow sensor (2) at the Nth time is QN；
The fluctuation value of the water flow rate value is deltaQ＝QN-QN-1Setting the maximum value of the percentage difference of the two adjacent water flow values as + A and the minimum value as-A;
a. the water flow sensor (2) collects water flow values and transmits the water flow values to the controller (3), and the controller (3) receives and stores the water flow values;
b. when the set time length T is finished and the set time length T always satisfies | (Q)N-QN-1)/QN-1If the water leakage is judged to be less than or equal to A, the controller (3) sends a closing instruction to the electric control valve (4);
when | Q appears within a set time period TN-QN-1)/QN-1If the absolute value is greater than A, judging that the water is not leaked, and setting a time length T to restart timing;
c. the controller (3) continues to receive the water flow value collected by the water flow sensor (2) next time.
6. The water leakage detection method of claim 5, wherein: after the controller (3) completes the step b, the zero clearing unit (6) clears the water flow value on the water flow sensor (2), and the zero clearing unit (6) resets the set time length T for operation.
7. The water leakage detection method of claim 5, wherein: when a user presses the reset button (8), the controller (3) sends an opening instruction, and the electric control valve (4) is opened.
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| CN111550676A (en) | 2020-08-18 |
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